{"id":"CVE-2016-3163","aliases":["GHSA-h3r9-pjmr-f938"],"url":"https://o3.security/vulnerability/CVE-2016-3163","summary":"Drupal Brute force amplification attacks via XML-RPC","details":"The XML-RPC system in Drupal 6.x before 6.38 and 7.x before 7.43 might make it easier for remote attackers to conduct brute-force attacks via a large number of calls made at once to the same method.","published":"2016-04-12T15:59:01.150Z","modified":"2026-07-08T05:49:08.246147928Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"7.43"},{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"6.38"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"7.43"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"6.38"}],"fix":null,"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2016/02/24/19"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2016/03/15/10"},{"type":"ADVISORY","url":"http://www.debian.org/security/2016/dsa-3498"},{"type":"FIX","url":"https://www.drupal.org/SA-CORE-2016-001"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-3163"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2016-3163.yaml"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2016-3163.yaml"},{"type":"PACKAGE","url":"https://github.com/drupal/core"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:49:08.246147928Z"}}